test(robot): Fix failing integration tests due to multiple STDOUT file overwrites

robot/actor_configuration.robot

@@ -31,7 +31,7 @@ V2 Actor Config Produces Provider And Graph Descriptor
     ...    ${SPACE*4}publications:
     ...    ${SPACE*6}- __output__
     Create File    ${config}    ${content}
-    ${result}=    Run Process    ${PYTHON}    robot/helper_actor_config.py    ${config}    stdout=PIPE    stderr=PIPE
+    ${result}=    Run Process    ${PYTHON}    robot/helper_actor_config.py    ${config}
     Should Be Equal As Integers    ${result.rc}    0
     ${payload}=    Evaluate    __import__('json').loads('''${result.stdout.strip()}''')
     Should Be Equal    ${payload['provider']}    openai

robot/changeset_capture.robot

@@ -13,7 +13,6 @@ File Write Produces ChangeSet Entry
     ...                verify the resulting ChangeSet contains the entry.
     ${result}=    Run Process    ${PYTHON}    -c
     ...    ${CHANGESET_SCRIPT}
-    ...    stdout=PIPE    stderr=PIPE
     Log    ${result.stdout}
     Log    ${result.stderr}
     Should Be Equal As Integers    ${result.rc}    0
@@ -24,7 +23,6 @@ ChangeSet Summary Counts Match
     [Documentation]    Verify summary counts after multiple operations.
     ${result}=    Run Process    ${PYTHON}    -c
     ...    ${SUMMARY_SCRIPT}
-    ...    stdout=PIPE    stderr=PIPE
     Log    ${result.stdout}
     Log    ${result.stderr}
     Should Be Equal As Integers    ${result.rc}    0
@@ -36,7 +34,6 @@ InMemoryChangeSetStore Round Trip
     [Documentation]    Verify start/record/get via InMemoryChangeSetStore.
     ${result}=    Run Process    ${PYTHON}    -c
     ...    ${STORE_SCRIPT}
-    ...    stdout=PIPE    stderr=PIPE
     Log    ${result.stdout}
     Log    ${result.stderr}
     Should Be Equal As Integers    ${result.rc}    0

robot/ci_nox_validation.robot

@@ -7,7 +7,7 @@ Library          OperatingSystem
 Nox Lists All Required Sessions
     [Documentation]    Verify that nox can list sessions and the required CI sessions are present
     [Tags]    ci    quality    slow
-    ${result}=    Run Process    nox    --list    stdout=PIPE    stderr=PIPE
+    ${result}=    Run Process    nox    --list
     Should Be Equal As Integers    ${result.rc}    0    msg=nox --list failed with: ${result.stderr}
     # Verify required sessions exist in nox output
     Should Contain    ${result.stdout}    lint
@@ -28,5 +28,5 @@ CI Workflow File Exists
 Nox Lint Session Runs Successfully
     [Documentation]    Verify that nox lint session can be invoked
     [Tags]    ci    quality    slow
-    ${result}=    Run Process    nox    -s    lint    stdout=PIPE    stderr=PIPE    timeout=120s
+    ${result}=    Run Process    nox    -s    lint    timeout=120s
     Should Be Equal As Integers    ${result.rc}    0    msg=nox -s lint failed: ${result.stderr}

robot/plan_lifecycle_persistence.robot

@@ -11,7 +11,7 @@ ${PYTHON}    python
 Plan Lifecycle Persistence Via Helper Script
     [Documentation]    Create action + plan, verify persistence through transitions
     ${result}=    Run Process    ${PYTHON}    ${CURDIR}/helper_plan_lifecycle_persistence.py
-    ...    stdout=STDOUT    stderr=STDOUT    timeout=30s
+    ...    stderr=STDOUT    timeout=30s
     Log    ${result.stdout}
     Should Contain    ${result.stdout}    PASS: plan_lifecycle_persistence smoke test
     Should Be Equal As Integers    ${result.rc}    0

robot/plan_repository.robot

@@ -11,7 +11,7 @@ ${PYTHON}    python
 Plan Repository CRUD Via Helper Script
     [Documentation]    Create, retrieve, list, count, and delete a plan via LifecyclePlanRepository
     ${result}=    Run Process    ${PYTHON}    ${CURDIR}/helper_plan_repository.py
-    ...    stdout=STDOUT    stderr=STDOUT    timeout=30s
+    ...    stderr=STDOUT    timeout=30s
     Log    ${result.stdout}
     Should Contain    ${result.stdout}    PASS: plan_repository smoke test
     Should Be Equal As Integers    ${result.rc}    0

robot/uow_lifecycle.robot

@@ -11,7 +11,7 @@ ${PYTHON}    python
 UoW Lifecycle Action And Plan Via Helper Script
     [Documentation]    Create action + plan via UoW, verify retrieval in new session
     ${result}=    Run Process    ${PYTHON}    ${CURDIR}/helper_uow_lifecycle.py
-    ...    stdout=STDOUT    stderr=STDOUT    timeout=30s
+    ...    stderr=STDOUT    timeout=30s
     Log    ${result.stdout}
     Should Contain    ${result.stdout}    PASS: uow_lifecycle smoke test
     Should Be Equal As Integers    ${result.rc}    0